Practical decision tools for founders and teams building software.
AI can generate code. These tools help you decide when code generation stops being the hard part.
Prevent runaway scope and clarify what “done” means.
MVP Boundary Scoping Tool Strategic Invariant AnalyzerModel why adding developers can slow delivery.
Team Scaling Fallacy Calculator (Brook’s Law) Cheap Dev False Economy Calculator Vibe Code Loss CalculatorSanity check budgets and delivery windows.
Custom Software Cost Reality CheckUnderstand how backend platform costs evolve as usage grows. These tools surface where teams get surprised and when tradeoffs shift.
Kotlin + Firebase Cost Calculator SwiftUI + Firebase Cost Calculator Supabase Cost Reality Calculator Heroku Cost Reality CalculatorMost conversations start when a project is already under pressure.
Verified reviews from real projects
“Amazing in communication.”
Client · iOS App (Swift & Firebase)
“Went above and beyond.”
Client · Firebase Integration Revamp
“It was great working with Bill! Very pleasant and knowledgeable.”
Client · Language Learning App